IgE Mediated Shellfish Allergy in Children-A Review.

Area of Science:

• Food allergy research
• Immunology
• Clinical diagnostics

Background:

• Shellfish allergy is a significant cause of food allergy and anaphylaxis globally.
• Molecular characterization has improved understanding of shellfish allergens.
• High sequence homology causes serological cross-reactivity, but this doesn't always predict clinical reactions.

Purpose of the Study:

• To review the current understanding of shellfish allergy.
• To discuss diagnostic methods and management strategies.
• To explore emerging immunotherapeutic approaches for shellfish allergy.

Main Methods:

• Review of recent advances in molecular characterization of shellfish allergens.
• Analysis of diagnostic tools including skin prick tests (SPTs), specific IgE, and double-blind placebo-controlled food challenges (DBPCFC).
• Discussion of clinical manifestations and cross-reactivity patterns.

Main Results:

• Immediate clinical manifestations with perioral symptoms are typical.
• Serological cross-reactivity is common but doesn't perfectly correlate with clinical cross-reactivity.
• Complete avoidance of all shellfish is recommended due to common cross-reactivity.

Conclusions:

• Accurate diagnosis of shellfish allergy is crucial.
• Current diagnostic methods include SPTs, specific IgE, and DBPCFC.
• Future research focuses on desensitization through hypoallergen immunotherapy and innovative strategies.